3alum

Definition of ALUM

Other Chemical Engineering Terms

alum

nounal·um \ˈal-əm\(Medical Dictionary)

Medical Definition of ALUM

1

: either of two colorless or white crystalline double sulfates of aluminum used in medicine internally as emetics and locally as astringents and styptics: a: one KAl(SO4)2·12H2O that is a sulfate of aluminum and potassium—called also potassium alumb: one consisting of an ammonium aluminum sulfate NH4Al(SO4)2·12H2O—called also ammonia alum, ammonium alum

2

: any of various double salts isomorphous with potassium aluminum sulfate